We don't think about it, but these days, autofill forms have made our online lives so much easier. These days, when you buy a plane ticket, you barely have to type anything. Instead, saved information fills in most fields automatically.

Recently, online casinos have adopted the same idea, only for payment cards. By having card information saved, deposits become seamless, automated affairs.

Many sites have come up with card registration promotions to encourage users to register their payment card.

Follow us below the fold, and we'll show you how generous these deals can be for you.

How does this promo work?

Many online casinos offer card registration promos. Here's how they work – start by registering an account with a site that offers a card registration promo. Then, when prompted, add your payment card details. Lastly, ensure that you select the "card registration" promotion from a drop-down menu before hitting "submit."

In each of these promos, you don't actually have to make a deposit. All you have to do is supply your payment card details. In doing so, you can secure a sizable haul of free spins – all without putting a single quid online.